Grand Central Terminal is an amazing work or architectural and design wonder of the City, one of our crown jewels of functional space.

One of it't more well know design features is the whispering gallery, in which two people can stand back to back 50 feet apart and hear each other perfectly due to way sound travels across the shape of the vaulted ceiling.

No evidence exists that the whispering gallery was anything more than a “happy coincidence,” says one of the architects who helped restore Grand Central in the 1990s, states this New York Times piece.